Arizona Congressman Matt Salmon of the Fifth District makes light of the scientific fact of anthropogenic global warming. In an April 26, 2013 interview with the Arizona Republic, Rep. Salmon (R-Ariz.) said global warming is “coming from the hot air coming out of Washington.”

“I found the source of global warming is coming from the hot air coming out of Washington.”

In reality, the carbon-dioxide greenhouse effect is a physical fact known since the 1800s. The only scientifically plausible systematic explanation for the rapid warming of the planetary climate since 1950 is industrial greenhouse pollution. Because of the hundreds of billions of tons of industrial carbon dioxide added to the atmosphere, the global climate is continuing to warm, with every decade since the 1970s warmer than the last, and the impacts of global warming are accelerating faster than scientists projected.